Turkish Foreign Minister Hakan Piden:

"No one criticizes NATO as a paper tiger. But when it comes to a fledgling defense alliance, they point to a 10-year crisis in Yemen and say, 'Look, it's not working.' We just started."

Piden was responding to claims that the Houthi attacks on Saudi Arabia were the first test of the Mecca alliance. He asked former US Ambassador to Turkey James Jeffrey how many times NATO Article 5 had been invoked. Jeffrey: Just once.